Global Patent Index - EP 0778816 B1

EP 0778816 B1 20020130 - METHOD OF MAKING HIGH STRENGTH PORCELAIN

Title (en)

METHOD OF MAKING HIGH STRENGTH PORCELAIN

Title (de)

VERFAHREN ZUR HERSTELLUNG VON HOCHFESTEM PORZELLAN

Title (fr)

PROCEDE POUR LA PREPARATION DE PORCELAIN HAUTEMENT RESISTANTE

Publication

EP 0778816 B1 20020130 (EN)

Application

EP 95930209 A 19950817

Priority

  • US 9510540 W 19950817
  • US 29745194 A 19940829

Abstract (en)

[origin: US5461015A] A porcelain having 9 to 55% by weight of SiO2, 36 to 87% by weight of Al2O3, 0 to 2.0% by weight of Fe2O3, 0 to 1.0% by weight of TiO2, 0 to 0.5% by weight of CaO, 0 to 0.5% by weight of MgO, 1.0 to 4.0% by weight of K2O and Na2O combined, and 0.25 to 25.0% by weight of bismuth oxide is disclosed. The porcelain has unexpectedly high unglazed bending strength and may be used for dielectric and structural applications.

IPC 1-7

C04B 35/18; C04B 33/24

IPC 8 full level

C04B 35/10 (2006.01); C03C 10/00 (2006.01); C04B 33/24 (2006.01); C04B 35/18 (2006.01)

CPC (source: EP KR US)

C03C 10/0009 (2013.01 - EP US); C04B 33/24 (2013.01 - EP KR US); C04B 35/18 (2013.01 - KR)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE

DOCDB simple family (publication)

US 5461015 A 19951024; AT E212609 T1 20020215; BR 9508637 A 19971125; CA 2198585 A1 19960307; CA 2198585 C 20071030; DE 69525258 D1 20020314; DE 69525258 T2 20020905; EP 0778816 A2 19970618; EP 0778816 B1 20020130; JP 2009013063 A 20090122; JP 4343270 B2 20091014; JP H10505052 A 19980519; KR 100379326 B1 20030609; KR 970705526 A 19971009; MX 9701489 A 19970531; TW 414785 B 20001211; US 5565392 A 19961015; WO 9606810 A2 19960307; WO 9606810 A3 19960411; ZA 957071 B 19970224

DOCDB simple family (application)

US 29745194 A 19940829; AT 95930209 T 19950817; BR 9508637 A 19950817; CA 2198585 A 19950817; DE 69525258 T 19950817; EP 95930209 A 19950817; JP 2008256348 A 20081001; JP 50880396 A 19950817; KR 19970701291 A 19970227; MX 9701489 A 19950817; TW 84108604 A 19950817; US 45765895 A 19950601; US 9510540 W 19950817; ZA 957071 A 19950823